(a) The term “Commercial vehicle” as used in this section shall include, but not be limited to trucks, station wagons, pickups, passenger cars or other vehicles when used in transporting movable property for a fee or profit, either as a direct charge to another person, or otherwise, or used as an incident to providing services to another person, or used in connection with any business.

(b) The use of government roads within the area administered by the Presidio Trust by commercial vehicles, when such use is in no way connected with the operation of the area administered by the Presidio Trust, is prohibited, except that in emergencies the Executive Director may grant permission to use Presidio Trust roads.

(c) The Executive Director shall issue permits for commercial vehicles used on Presidio Trust roads when such use is necessary for access to private lands situated within or adjacent to the area administered by the Presidio Trust, to which access is otherwise not available.